books.google.fr - 'I suspect the real breakthroughs in our understanding of consciousness are going to come from an entirely different direction. That direction, controversially, has to do with psychedelics - which, as many of the contributors to The Divine Spark argue, offer spectacular potential for the investigation...https://books.google.fr/books/about/The_Divine_Spark.html?hl=fr&id=39KlBwAAQBAJ&utm_source=gb-gplus-shareThe Divine Spark
